21992520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16661}}^1$

素因数の和:16686

約数の個数: 64

約数和(自身を含む): 71979840

約数和(自身を除く): 49987320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 16661, 33322, 49983, 66644, 83305, 99966, 133288, 166610, 183271, 199932, 249915, 333220, 366542, 399864, 499830, 549813, 666440, 733084, 916355, 999660, 1099626, 1466168, 1832710, 1999320, 2199252, 2749065, 3665420, 4398504, 5498130, 7330840, 10996260, 21992520]

約数ペア:

[(1, 21992520), (2, 10996260), (3, 7330840), (4, 5498130), (5, 4398504), (6, 3665420), (8, 2749065), (10, 2199252), (11, 1999320), (12, 1832710), (15, 1466168), (20, 1099626), (22, 999660), (24, 916355), (30, 733084), (33, 666440), (40, 549813), (44, 499830), (55, 399864), (60, 366542), (66, 333220), (88, 249915), (110, 199932), (120, 183271), (132, 166610), (165, 133288), (220, 99966), (264, 83305), (330, 66644), (440, 49983), (660, 33322), (1320, 16661)]